ALLEN PARK >> Ndamukong Suh is not on the trading block, despite reports to the contrary.

“We’re not looking to trade him, we have no plans to trade him,’’ Detroit Lions general manager Martin Mayhew said Monday at a pre-draft press conference. “I haven’t had any conversations with anybody about trading him. Except in January I did get a call that had an interest. They offered me a box of old tube socks. I said, ‘No, thank you.’

“Other than that there’s been no conversation, there’s been no gauging, the interest level, there’s been none of that that’s been authorized by me,’’ Mayhew said. “So I don’t know where that came from, that’s not on the table.’’

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With the NFL draft two weeks later than usual, there’s been plenty of time for more draft speculation.

“There’s a lot of scenarios you can create where it might make sense to try to do something with him,’’ Mayhew said. “You can think through all that stuff. The bottom line is winning football games and we’re here to win football games, that’s the guy who helps us do that. So I’m planing on Ndamukong being with us.’’

Suh added fuel to the raging rumor because he has not attended the offseason workout program or the minicamp — both were voluntary — even with a new coaching staff installing a new defense.

“The routine that he’s on right now, he’ll be here hopefully sometime in mid-May, is a routine that he’s been on for the last three seasons,’’ Mayhew said. “He’s performed pretty well the last three seasons, so it doesn’t shock me that he’s not here and I’ll leave it at that.”

Suh’s absence has also been more noticeable because he is working on a contract extension with the Lions. The 2010 first-round pick is signed through the 2014 season.

Mayhew said talks are ongoing but he wouldn’t give specifics about how close or far off the deal may be.

“I don’t think it really benefits to try to gauge where you are, are you close, are you far and all that,’’ Mayhew said. “I’ve doing this for a while now and you can say you’re close, but you’re not close until everybody signs it.’’

The NFL draft starts at 8 p.m. Thursday. The Lions have the 10th overall pick in the first round and eight picks overall.